| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.99 | 3.01 | -0.02 |
| Feb | 2.62 | 2.63 | -0.01 |
| Mar | 3.45 | 3.42 | 0.03 |
| Apr | 3.57 | 3.56 | 0.01 |
| May | 4.25 | 4.35 | -0.10 |
| Jun | 3.84 | 3.87 | -0.03 |
| Jul | 4.10 | 3.98 | 0.12 |
| Aug | 3.52 | 3.09 | 0.43 |
| Sep | 3.54 | 3.38 | 0.16 |
| Oct | 2.80 | 2.77 | 0.03 |
| Nov | 2.73 | 2.74 | -0.01 |
| Dec | 3.09 | 3.14 | -0.05 |
40.50 | 39.94 | 0.56 |